Chemical Formula

                                 Chemical Formula

                  The symbolic representation of a chemical compound is called chemical formula.

There are three types of chemical formula

1:Molecular formula

2:Empirical formula

3:Structural formula

Molecular formula:

                                   It is a shorthand notation for the molecules of a substance in terms of symbols. It represent the actual numbers of atoms present in one molecules of that substance.

For example:

                     Molecular formula of methane is CH_4.

                               Molecular formula of benzene is C₆H₆. Etc.

Molecular mass:

                             Molecular mass of   a compound also represent  one molecule of a substance.

For example:

                        Molecular formula of benzene is C₆H₆  and the  atomic mass of carbon is 12 and hydrogen is 1. So 6 x12 +6x1=78µ.